<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>04-数据转换练习</title>
</head>
<body>
    <script>
        let num1 = +prompt('输入第一个数')
        let num2 = +prompt('输入第二个数')
        let jieguo = num1 +num2
        alert(`两个数的和是:${num1 + num2}`)
    </script>
</body>
</html>